It's not bad IF you are actually increasing the opening speed of the TB. Something that simply sends more voltage sooner to the ECU to tell the ECU to open the TB is silly. If you want more sensitive throttle teach yourself to push the pedal down a little further!The thing that is discouraging about those modules is they still won't work to speed up the Tb when you go WOT, as they can only output as much voltage as the accelerator pedal. To me, the only time you really need the Tb to open quicker is at WOT.